from flask import g, render_template, redirect, request, jsonify, current_app, session, abort

from info import RET, db, constants
from info.models import News, Category, User
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from . import profile_blu


@profile_blu.route('/other_news_list')
def other_news_list():
    # 获取页数
    p = request.args.get("p", 1)
    user_id = request.args.get("user_id")
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if not all([p, user_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    try:
        user = User.query.get(user_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询错误")

    if not user:
        return jsonify(errno=RET.NODATA, errmsg="用户不存在")

    try:
        paginate = News.query.filter(News.user_id == user.id).paginate(p, constants.OTHER_NEWS_PAGE_MAX_COUNT, False)
        # 获取当前页数据
        news_li = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询错误")

    news_dict_li = []

    for news_item in news_li:
        news_dict_li.append(news_item.to_review_dict())
    data = {"news_list": news_dict_li,
            "total_page": total_page,
            "current_page": current_page
            }
    return jsonify(errno=RET.OK, errmsg="OK", data=data)



@profile_blu.route('/other_info')
@user_login_data
def other_info():
    """查看其他用户信息"""
    user = g.user

    # 获取其他用户id
    user_id = request.args.get("id")
    if not user_id:
        abort(404)
    # 查询用户模型
    other = None
    try:
        other = User.query.get(user_id)
    except Exception as e:
        current_app.logger.error(e)
    if not other:
        abort(404)

    # 判断当前登录用户是否关注过该用户
    is_followed = False
    if g.user:
        if other.followers.filter(User.id == user.id).count() > 0:
            is_followed = True

    # 组织数据，并返回
    data = {
        "user_dict": user.to_dict() if user else None,
        "other_info": other.to_dict(),
        "is_followed": is_followed
    }
    return render_template('news/other.html', data=data)


@profile_blu.route('/user_follow')
@user_login_data
def user_follow():
    # 获取页数
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    user = g.user

    follows = []
    current_page = 1
    total_page = 1
    try:
        paginate = user.followed.paginate(p, constants.USER_FOLLOWED_MAX_COUNT, False)
        # 获取当前页数据
        follows = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    user_dict_li = []

    for follow_user in follows:
        user_dict_li.append(follow_user.to_dict())
    data = {"users": user_dict_li, "total_page": total_page, "current_page": current_page}
    return render_template('news/user_follow.html', data=data)

@profile_blu.route("/news_list")
@user_login_data
def news_list():
    """
    新闻列表
    :return:
    """
    # 获取页数
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    news_li = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.user_id == user.id).order_by(News.create_time.desc()).paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
        # 获取当前页数据
        news_li = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []

    for news_item in news_li:
        news_dict_li.append(news_item.to_review_dict())
    data = {"news_list": news_dict_li, "total_page": total_page, "current_page": current_page}
    return render_template('news/user_news_list.html', data=data)


@profile_blu.route("/news_release", methods=["GET", "POST"])
@user_login_data
def news_release():
    """
    新闻发布

    :return:
    """
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    if request.method == "GET":
        categories = []
        try:
            # 获取所有的分类数据
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)

        # 定义列表保存分类数据
        categories_dicts = []

        for category in categories:
            # 获取字典
            cate_dict = category.to_dict()
            # 拼接内容
            categories_dicts.append(cate_dict)

        # 移除`最新`分类
        categories_dicts.pop(0)
        # 返回内容
        return render_template('news/user_news_release.html', data={"categories": categories_dicts})
    # POST 提交，执行发布新闻操作

    # 1. 获取要提交的数据
    title = request.form.get("title")
    source = "个人发布"
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    # 1.1 判断数据是否有值
    if not all([title, source, digest, content, index_image, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 1.2 尝试读取图片
    try:
        index_image = index_image.read()
    except Exception as e:
        current_app.logger.error(e)
        # return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 2. 将标题图片上传到七牛
    try:
        key = storage(index_image)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")

    # 3. 初始化新闻模型，并设置相关数据
    news = News()
    news.title = title
    news.digest = digest
    news.source = source
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.category_id = category_id
    news.user_id = user.id
    # 1代表待审核状态
    news.status = 1

    # 4. 保存到数据库
    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="发布成功，等待审核")



@profile_blu.route("/collection")
@user_login_data
def collection():
    """
    我的收藏
    :return:
    """
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    # 获取页数
    p = request.args.get("p", 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
    collections = []
    current_page = 1
    total_page = 1
    try:
        # 进行分页数据查询
        paginate = user.collection_news.paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
        # 获取分页数据
        collections = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    collection_dict_li = []
    for news in collections:
        collection_dict_li.append(news.to_basic_dict())

    data = {
        "total_page": total_page,
        "current_page": current_page,
        "collections": collection_dict_li
    }
    return render_template('news/user_collection.html', data=data)
    # 返回响应


@profile_blu.route("/pass_info", methods=["GET", "POST"])
@user_login_data
def pass_info():
    """
    密码修改
    1. 判断请求方式返回不同的响应
    2. GET请求，查询数据，返回响应
    3. POST请求，接受请求参数，校验数据，查询数据，修改数据，返回响应
    :return:
    """
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    # 1. 判断请求方式返回不同的响应
    if request.method == "GET":
        return render_template("news/user_pass_info.html")
    # 3.POST请求
    # 接受请求参数old_password  new_password
    old_password = request.json.get("old_password")
    new_password = request.json.get("new_password")
    # 校验数据
    if not all([old_password, new_password]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if not user.check_password(old_password):
        return jsonify(errno=RET.PWDERR, errmsg="密码错误")
    # 修改数据
    user.password = new_password
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    # 返回响应
    return jsonify(errno=RET.OK, errmsg="更新成功")

@profile_blu.route("/pic_info", methods=["GET", "POST"])
@user_login_data
def pic_info():
    """
    头像修改
    1. 判断请求方式返回不同的响应
    2. GET请求，查询数据，返回响应
    3. POST请求，接受请求参数，校验数据，查询数据，修改数据，返回响应
    :return:
    """
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    # 1. 判断请求方式返回不同的响应
    if request.method == "GET":
        # 2.如果请求方式是GET，查询出当前登录用户的数据
        data = {
            "user_dict": user.to_dict()
        }
        return render_template("news/user_pic_info.html", data=data)
    # POST请求
    # 接受请求参数
    try:
        pic = request.files.get("avatar").read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="读取文件出错")
    # 向七牛云上传图片
    try:
        pic_url = storage(pic)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传图片失败")
    # 修改数据
    user.avatar_url = pic_url
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存用户数据错误")

        # 4. 返回上传的结果<avatar_url>
    return jsonify(errno=RET.OK, errmsg="OK", data={"avatar_url": constants.QINIU_DOMIN_PREFIX + pic_url})


@profile_blu.route("/base_info", methods=["GET", "POST"])
@user_login_data
def base_info():
    """
    基本资料
    1. 判断请求方式返回不同的响应
    2. GET请求，查询数据，返回响应
    3. POST请求，接受请求参数，校验数据，查询数据，修改数据，返回响应
    :return:
    """
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    # 1. 判断请求方式返回不同的响应
    if request.method == "GET":
        # 2.如果请求方式是GET，查询出当前登录用户的数据
        data = {
            "user_dict": user.to_dict()
        }
        return render_template("news/user_base_info.html", data=data)
    # 3.POST请求
    # 3.1接受请求参数
    signature = request.json.get("signature")
    nick_name = request.json.get("nick_name")
    gender = request.json.get("gender")
    # 3.2校验数据
    if not all([signature, nick_name, gender]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if gender not in ("MAN", "WOMAN"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # 3.3修改数据
    user.signature = signature
    user.nick_name = nick_name
    user.gender = gender
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
        # 将 session 中保存的数据进行实时更新
    session["nick_name"] = nick_name
    # 4. 返回响应
    return jsonify(errno=RET.OK, errmsg="更新成功")


@profile_blu.route("/info")
@user_login_data
def user():
    user = g.user
    if not user:
        # 代表没登录重定向到首页
        return redirect("/")
    data = {
        "user_dict": user.to_dict()
    }
    return render_template("news/user.html", data=data)